“This incredible new project will be enjoyed by children and families in Boston and beyond for generations to come,” said Gordon Carr, chairman of the Zoo New England board of directors.

So far, $4.5 million has been raised. The project is intended to raise children’s ecological awareness.

“In this day and age, when so many, including children, are focused on computer screens and mobile devices, it’s important not to lose the connection to nature and our critical role in ensuring the planet remains a healthy, thriving place,” said John Linehan, chief executive of Zoo New England.

Cambridge Seven Associates is the lead architect for Nature’s Neighborhoods. Main Street Design, also of Cambridge, is the project’s designer.